import java.io.*;

public class lianxi4 {
    public static void main(String[] args) throws IOException {
//        InputStream in = System.in;
//        InputStreamReader ipt=new InputStreamReader(in);
        BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));
        System.out.println("请输入");
        String s = reader.readLine();
        System.out.println(s);
    }
}
